Creating multirow table headers

Question

I have a table where my column headers are set with the following instruction :

table.setColumnHeader

I wonder how can I create multilevel

Answer 1

In Vaadin7 you can set the table header height dynamically by adding following CSS rule to your theme:

  .v-table-header-wrap {
    height: auto;
  }

The only think is that the column separator is not set to 100% of the header row height ...